well im a newbie too bass im just starting out and i take lessons for accustic and then i try stuf out on bass later. But would it just be better if i go stright to bass, lost of people tell me to learn accustic first. i personally dont want to. what would you suggest?
I went from keyboards to guitar to bass, so I have a bit of an opinion on this. After 20 years of guitar playing, the transition to BASIC bass playing was simple, but my right hand still needs a lot of work to play complex lines.
There's 2 basic parts to learning an instrument - the knowledge of music and the physical techniques. The knowledge easily translates from one instrument to another, and can be broken down into notational skills (tab, sight reading), intervallic theory (intervals, chord formulas, scales, modes, progressions, notes on the fretboard, keyboard, etc.), rhythm, and ear training. That's why guitar players pick up the bass rather quickly.
The physical aspect (pick playing, fingerpicking, slap/pop, chord and scale shapes, left hand stuff, tapping, whatever) can translate a little, but not totally. Left hand strength and right hand techniques require time specifically on a bass in order to develop them. A good bass player is going to be able to play things on a bass that a guitarist transitioning cannot do immediately.
Bottom line - it depends on your goals. If you want to be just a bassist, just play bass. If you want to be an all around musician, then pick up a guitar, or play keys too. It's nice to have the guitar or keyboard knowledge under your belt for writing basslines and understanding what the other guys you're playing with are doing, but it's not required. You can learn by just picking up a bass and going for it. Your physical technique will come faster than if you split time on guitar and bass.
Regardless of what you do, I'd spend a lot of time learning about intervallic theory, chord formulas and scales. That's where it's all at. Knowing the difference between a 2nd, minor 3rd, major 3rd, etc. That's what puts it all together.
Good luck.